Ultra-Low and Zero Speed Sensorless Control of Permanent Magnet Synchronous Motor based on Sliding Mode Observer
The ultra-low and zero speed sensorless control of permanent magnet synchronous motor (PMSM) based on observers is a troublesome problem due to the extremely weak back electromotive force (EMF) and unavoidable noises.Faced with this problem,we analyzed the factors that may cause motors rotating inversely,and constructed an equation describing how the given speed,inertia and load torque affect the rotating direction in the ultra-low speed occasions.The results on ultra-low and zero speed simulations show excellent performance and strong robustness of the control system.
PMSM SMO Ultra low speed control Sensorless control
Peng Tao Fenxiang Wang Jinxin Lin Zhe Chen Zhenbin Zhang
Modern Motor and Power Electronics Laboratory, Quanzhou;Institute of Equipment Manufacturing, Haixi Key Laboratory of Optoelectronic Materials Chemical and Physics,Fujian Institute of Research on the Institute for Electrical Drive Systems and Power Electronics, Technical University of Munich Munich,
国际会议
重庆
英文
547-551
2015-12-19(万方平台首次上网日期,不代表论文的发表时间)